summaryrefslogtreecommitdiff
path: root/drivers/isdn/hisax/ipacx.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/isdn/hisax/ipacx.c')
-rw-r--r--drivers/isdn/hisax/ipacx.c675
1 files changed, 337 insertions, 338 deletions
diff --git a/drivers/isdn/hisax/ipacx.c b/drivers/isdn/hisax/ipacx.c
index 690840444184..74feb5c83067 100644
--- a/drivers/isdn/hisax/ipacx.c
+++ b/drivers/isdn/hisax/ipacx.c
@@ -1,10 +1,10 @@
-/*
+/*
*
* IPACX specific routines
*
* Author Joerg Petersohn
* Derived from hisax_isac.c, isac.c, hscx.c and others
- *
+ *
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
@@ -24,7 +24,7 @@
#define D_FIFO_SIZE 32
-// ipacx interrupt mask values
+// ipacx interrupt mask values
#define _MASK_IMASK 0x2E // global mask
#define _MASKB_IMASK 0x0B
#define _MASKD_IMASK 0x03 // all on
@@ -55,33 +55,33 @@ static void clear_pending_ints(struct IsdnCardState *cs);
//----------------------------------------------------------
// Issue Layer 1 command to chip
//----------------------------------------------------------
-static void
+static void
ph_command(struct IsdnCardState *cs, unsigned int command)
{
- if (cs->debug &L1_DEB_ISAC)
+ if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "ph_command (%#x) in (%#x)", command,
cs->dc.isac.ph_state);
-//###################################
+//###################################
// printk(KERN_INFO "ph_command (%#x)\n", command);
-//###################################
+//###################################
cs->writeisac(cs, IPACX_CIX0, (command << 4) | 0x0E);
}
//----------------------------------------------------------
// Transceiver interrupt handler
//----------------------------------------------------------
-static inline void
+static inline void
cic_int(struct IsdnCardState *cs)
{
u_char event;
event = cs->readisac(cs, IPACX_CIR0) >> 4;
- if (cs->debug &L1_DEB_ISAC) debugl1(cs, "cic_int(event=%#x)", event);
-//#########################################
+ if (cs->debug & L1_DEB_ISAC) debugl1(cs, "cic_int(event=%#x)", event);
+//#########################################
// printk(KERN_INFO "cic_int(%x)\n", event);
-//#########################################
- cs->dc.isac.ph_state = event;
- schedule_event(cs, D_L1STATECHANGE);
+//#########################################
+ cs->dc.isac.ph_state = event;
+ schedule_event(cs, D_L1STATECHANGE);
}
//==========================================================
@@ -99,99 +99,99 @@ dch_l2l1(struct PStack *st, int pr, void *arg)
u_char cda1_cr;
switch (pr) {
- case (PH_DATA |REQUEST):
- if (cs->debug &DEB_DLOG_HEX) LogFrame(cs, skb->data, skb->len);
- if (cs->debug &DEB_DLOG_VERBOSE) dlogframe(cs, skb, 0);
- if (cs->tx_skb) {
- skb_queue_tail(&cs->sq, skb);
-#ifdef L2FRAME_DEBUG
- if (cs->debug &L1_DEB_LAPD) Logl2Frame(cs, skb, "PH_DATA Queued", 0);
-#endif
- } else {
- cs->tx_skb = skb;
- cs->tx_cnt = 0;
+ case (PH_DATA | REQUEST):
+ if (cs->debug & DEB_DLOG_HEX) LogFrame(cs, skb->data, skb->len);
+ if (cs->debug & DEB_DLOG_VERBOSE) dlogframe(cs, skb, 0);
+ if (cs->tx_skb) {
+ skb_queue_tail(&cs->sq, skb);
#ifdef L2FRAME_DEBUG
- if (cs->debug &L1_DEB_LAPD) Logl2Frame(cs, skb, "PH_DATA", 0);
+ if (cs->debug & L1_DEB_LAPD) Logl2Frame(cs, skb, "PH_DATA Queued", 0);
#endif
- dch_fill_fifo(cs);
- }
- break;
-
- case (PH_PULL |INDICATION):
- if (cs->tx_skb) {
- if (cs->debug & L1_DEB_WARN)
- debugl1(cs, " l2l1 tx_skb exist this shouldn't happen");
- skb_queue_tail(&cs->sq, skb);
- break;
- }
- if (cs->debug & DEB_DLOG_HEX) LogFrame(cs, skb->data, skb->len);
- if (cs->debug & DEB_DLOG_VERBOSE) dlogframe(cs, skb, 0);
+ } else {
cs->tx_skb = skb;
cs->tx_cnt = 0;
#ifdef L2FRAME_DEBUG
- if (cs->debug & L1_DEB_LAPD) Logl2Frame(cs, skb, "PH_DATA_PULLED", 0);
+ if (cs->debug & L1_DEB_LAPD) Logl2Frame(cs, skb, "PH_DATA", 0);
#endif
dch_fill_fifo(cs);
+ }
+ break;
+
+ case (PH_PULL | INDICATION):
+ if (cs->tx_skb) {
+ if (cs->debug & L1_DEB_WARN)
+ debugl1(cs, " l2l1 tx_skb exist this shouldn't happen");
+ skb_queue_tail(&cs->sq, skb);
break;
-
- case (PH_PULL | REQUEST):
+ }
+ if (cs->debug & DEB_DLOG_HEX) LogFrame(cs, skb->data, skb->len);
+ if (cs->debug & DEB_DLOG_VERBOSE) dlogframe(cs, skb, 0);
+ cs->tx_skb = skb;
+ cs->tx_cnt = 0;
#ifdef L2FRAME_DEBUG
- if (cs->debug & L1_DEB_LAPD) debugl1(cs, "-> PH_REQUEST_PULL");
+ if (cs->debug & L1_DEB_LAPD) Logl2Frame(cs, skb, "PH_DATA_PULLED", 0);
#endif
- if (!cs->tx_skb) {
- clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
- st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
- } else
- set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
- break;
-
- case (HW_RESET | REQUEST):
- case (HW_ENABLE | REQUEST):
- if ((cs->dc.isac.ph_state == IPACX_IND_RES) ||
- (cs->dc.isac.ph_state == IPACX_IND_DR) ||
- (cs->dc.isac.ph_state == IPACX_IND_DC))
- ph_command(cs, IPACX_CMD_TIM);
- else
- ph_command(cs, IPACX_CMD_RES);
- break;
-
- case (HW_INFO3 | REQUEST):
- ph_command(cs, IPACX_CMD_AR8);
- break;
-
- case (HW_TESTLOOP | REQUEST):
- cs->writeisac(cs, IPACX_CDA_TSDP10, 0x80); // Timeslot 0 is B1
- cs->writeisac(cs, IPACX_CDA_TSDP11, 0x81); // Timeslot 0 is B1
- cda1_cr = cs->readisac(cs, IPACX_CDA1_CR);
- (void) cs->readisac(cs, IPACX_CDA2_CR);
- if ((long)arg &1) { // loop B1
- cs->writeisac(cs, IPACX_CDA1_CR, cda1_cr |0x0a);
- }
- else { // B1 off
- cs->writeisac(cs, IPACX_CDA1_CR, cda1_cr &~0x0a);
- }
- if ((long)arg &2) { // loop B2
- cs->writeisac(cs, IPACX_CDA1_CR, cda1_cr |0x14);
- }
- else { // B2 off
- cs->writeisac(cs, IPACX_CDA1_CR, cda1_cr &~0x14);
- }
- break;
+ dch_fill_fifo(cs);
+ break;
- case (HW_DEACTIVATE | RESPONSE):
- skb_queue_purge(&cs->rq);
- skb_queue_purge(&cs->sq);
- if (cs->tx_skb) {
- dev_kfree_skb_any(cs->tx_skb);
- cs->tx_skb = NULL;
- }
- if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
- del_timer(&cs->dbusytimer);
- break;
+ case (PH_PULL | REQUEST):
+#ifdef L2FRAME_DEBUG
+ if (cs->debug & L1_DEB_LAPD) debugl1(cs, "-> PH_REQUEST_PULL");
+#endif
+ if (!cs->tx_skb) {
+ clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
+ st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
+ } else
+ set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
+ break;
+
+ case (HW_RESET | REQUEST):
+ case (HW_ENABLE | REQUEST):
+ if ((cs->dc.isac.ph_state == IPACX_IND_RES) ||
+ (cs->dc.isac.ph_state == IPACX_IND_DR) ||
+ (cs->dc.isac.ph_state == IPACX_IND_DC))
+ ph_command(cs, IPACX_CMD_TIM);
+ else
+ ph_command(cs, IPACX_CMD_RES);
+ break;
+
+ case (HW_INFO3 | REQUEST):
+ ph_command(cs, IPACX_CMD_AR8);
+ break;
+
+ case (HW_TESTLOOP | REQUEST):
+ cs->writeisac(cs, IPACX_CDA_TSDP10, 0x80); // Timeslot 0 is B1
+ cs->writeisac(cs, IPACX_CDA_TSDP11, 0x81); // Timeslot 0 is B1
+ cda1_cr = cs->readisac(cs, IPACX_CDA1_CR);
+ (void) cs->readisac(cs, IPACX_CDA2_CR);
+ if ((long)arg & 1) { // loop B1
+ cs->writeisac(cs, IPACX_CDA1_CR, cda1_cr | 0x0a);
+ }
+ else { // B1 off
+ cs->writeisac(cs, IPACX_CDA1_CR, cda1_cr & ~0x0a);
+ }
+ if ((long)arg & 2) { // loop B2
+ cs->writeisac(cs, IPACX_CDA1_CR, cda1_cr | 0x14);
+ }
+ else { // B2 off
+ cs->writeisac(cs, IPACX_CDA1_CR, cda1_cr & ~0x14);
+ }
+ break;
+
+ case (HW_DEACTIVATE | RESPONSE):
+ skb_queue_purge(&cs->rq);
+ skb_queue_purge(&cs->sq);
+ if (cs->tx_skb) {
+ dev_kfree_skb_any(cs->tx_skb);
+ cs->tx_skb = NULL;
+ }
+ if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
+ del_timer(&cs->dbusytimer);
+ break;
- default:
- if (cs->debug &L1_DEB_WARN) debugl1(cs, "dch_l2l1 unknown %04x", pr);
- break;
+ default:
+ if (cs->debug & L1_DEB_WARN) debugl1(cs, "dch_l2l1 unknown %04x", pr);
+ break;
}
}
@@ -206,11 +206,11 @@ dbusy_timer_handler(struct IsdnCardState *cs)
if (test_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) {
rbchd = cs->readisac(cs, IPACX_RBCHD);
stard = cs->readisac(cs, IPACX_STARD);
- if (cs->debug)
- debugl1(cs, "D-Channel Busy RBCHD %02x STARD %02x", rbchd, stard);
- if (!(stard &0x40)) { // D-Channel Busy
+ if (cs->debug)
+ debugl1(cs, "D-Channel Busy RBCHD %02x STARD %02x", rbchd, stard);
+ if (!(stard & 0x40)) { // D-Channel Busy
set_bit(FLG_L1_DBUSY, &cs->HW_Flags);
- for (st = cs->stlist; st; st = st->next) {
+ for (st = cs->stlist; st; st = st->next) {
st->l1.l1l2(st, PH_PAUSE | INDICATION, NULL); // flow control on
}
} else {
@@ -232,30 +232,30 @@ dbusy_timer_handler(struct IsdnCardState *cs)
//----------------------------------------------------------
// Fill buffer from receive FIFO
//----------------------------------------------------------
-static void
+static void
dch_empty_fifo(struct IsdnCardState *cs, int count)
{
u_char *ptr;
- if ((cs->debug &L1_DEB_ISAC) && !(cs->debug &L1_DEB_ISAC_FIFO))
+ if ((cs->debug & L1_DEB_ISAC) && !(cs->debug & L1_DEB_ISAC_FIFO))
debugl1(cs, "dch_empty_fifo()");
- // message too large, remove
+ // message too large, remove
if ((cs->rcvidx + count) >= MAX_DFRAME_LEN_L1) {
- if (cs->debug &L1_DEB_WARN)
+ if (cs->debug & L1_DEB_WARN)
debugl1(cs, "dch_empty_fifo() incoming message too large");
- cs->writeisac(cs, IPACX_CMDRD, 0x80); // RMC
+ cs->writeisac(cs, IPACX_CMDRD, 0x80); // RMC
cs->rcvidx = 0;
return;
}
-
+
ptr = cs->rcvbuf + cs->rcvidx;
cs->rcvidx += count;
-
+
cs->readisacfifo(cs, ptr, count);
cs->writeisac(cs, IPACX_CMDRD, 0x80); // RMC
-
- if (cs->debug &L1_DEB_ISAC_FIFO) {
+
+ if (cs->debug & L1_DEB_ISAC_FIFO) {
char *t = cs->dlog;
t += sprintf(t, "dch_empty_fifo() cnt %d", count);
@@ -267,15 +267,15 @@ dch_empty_fifo(struct IsdnCardState *cs, int count)
//----------------------------------------------------------
// Fill transmit FIFO
//----------------------------------------------------------
-static void
+static void
dch_fill_fifo(struct IsdnCardState *cs)
{
int count;
u_char cmd, *ptr;
- if ((cs->debug &L1_DEB_ISAC) && !(cs->debug &L1_DEB_ISAC_FIFO))
+ if ((cs->debug & L1_DEB_ISAC) && !(cs->debug & L1_DEB_ISAC_FIFO))
debugl1(cs, "dch_fill_fifo()");
-
+
if (!cs->tx_skb) return;
count = cs->tx_skb->len;
if (count <= 0) return;
@@ -286,14 +286,14 @@ dch_fill_fifo(struct IsdnCardState *cs)
} else {
cmd = 0x0A; // XTF | XME
}
-
+
ptr = cs->tx_skb->data;
skb_pull(cs->tx_skb, count);
cs->tx_cnt += count;
cs->writeisacfifo(cs, ptr, count);
cs->writeisac(cs, IPACX_CMDRD, cmd);
-
- // set timeout for transmission contol
+
+ // set timeout for transmission contol
if (test_and_set_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) {
debugl1(cs, "dch_fill_fifo dbusytimer running");
del_timer(&cs->dbusytimer);
@@ -301,8 +301,8 @@ dch_fill_fifo(struct IsdnCardState *cs)
init_timer(&cs->dbusytimer);
cs->dbusytimer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ)/1000);
add_timer(&cs->dbusytimer);
-
- if (cs->debug &L1_DEB_ISAC_FIFO) {
+
+ if (cs->debug & L1_DEB_ISAC_FIFO) {
char *t = cs->dlog;
t += sprintf(t, "dch_fill_fifo() cnt %d", count);
@@ -314,7 +314,7 @@ dch_fill_fifo(struct IsdnCardState *cs)
//----------------------------------------------------------
// D channel interrupt handler
//----------------------------------------------------------
-static inline void
+static inline void
dch_int(struct IsdnCardState *cs)
{
struct sk_buff *skb;
@@ -322,31 +322,31 @@ dch_int(struct IsdnCardState *cs)
int count;
istad = cs->readisac(cs, IPACX_ISTAD);
-//##############################################
+//##############################################
// printk(KERN_WARNING "dch_int(istad=%02x)\n", istad);
-//##############################################
-
- if (istad &0x80) { // RME
- rstad = cs->readisac(cs, IPACX_RSTAD);
- if ((rstad &0xf0) != 0xa0) { // !(VFR && !RDO && CRC && !RAB)
- if (!(rstad &0x80))
- if (cs->debug &L1_DEB_WARN)
- debugl1(cs, "dch_int(): invalid frame");
- if ((rstad &0x40))
- if (cs->debug &L1_DEB_WARN)
- debugl1(cs, "dch_int(): RDO");
- if (!(rstad &0x20))
- if (cs->debug &L1_DEB_WARN)
- debugl1(cs, "dch_int(): CRC error");
- cs->writeisac(cs, IPACX_CMDRD, 0x80); // RMC
+//##############################################
+
+ if (istad & 0x80) { // RME
+ rstad = cs->readisac(cs, IPACX_RSTAD);
+ if ((rstad & 0xf0) != 0xa0) { // !(VFR && !RDO && CRC && !RAB)
+ if (!(rstad & 0x80))
+ if (cs->debug & L1_DEB_WARN)
+ debugl1(cs, "dch_int(): invalid frame");
+ if ((rstad & 0x40))
+ if (cs->debug & L1_DEB_WARN)
+ debugl1(cs, "dch_int(): RDO");
+ if (!(rstad & 0x20))
+ if (cs->debug & L1_DEB_WARN)
+ debugl1(cs, "dch_int(): CRC error");
+ cs->writeisac(cs, IPACX_CMDRD, 0x80); // RMC
} else { // received frame ok
count = cs->readisac(cs, IPACX_RBCLD);
- if (count) count--; // RSTAB is last byte
- count &= D_FIFO_SIZE-1;
+ if (count) count--; // RSTAB is last byte
+ count &= D_FIFO_SIZE - 1;
if (count == 0) count = D_FIFO_SIZE;
dch_empty_fifo(cs, count);
if ((count = cs->rcvidx) > 0) {
- cs->rcvidx = 0;
+ cs->rcvidx = 0;
if (!(skb = dev_alloc_skb(count)))
printk(KERN_WARNING "HiSax dch_int(): receive out of memory\n");
else {
@@ -354,57 +354,57 @@ dch_int(struct IsdnCardState *cs)
skb_queue_tail(&cs->rq, skb);
}
}
- }
- cs->rcvidx = 0;
+ }
+ cs->rcvidx = 0;
schedule_event(cs, D_RCVBUFREADY);
}
- if (istad &0x40) { // RPF
+ if (istad & 0x40) { // RPF
dch_empty_fifo(cs, D_FIFO_SIZE);
}
- if (istad &0x20) { // RFO
- if (cs->debug &L1_DEB_WARN) debugl1(cs, "dch_int(): RFO");
- cs->writeisac(cs, IPACX_CMDRD, 0x40); //RRES
+ if (istad & 0x20) { // RFO
+ if (cs->debug & L1_DEB_WARN) debugl1(cs, "dch_int(): RFO");
+ cs->writeisac(cs, IPACX_CMDRD, 0x40); //RRES
}
-
- if (istad &0x10) { // XPR
+
+ if (istad & 0x10) { // XPR
if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
del_timer(&cs->dbusytimer);
if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
schedule_event(cs, D_CLEARBUSY);
- if (cs->tx_skb) {
- if (cs->tx_skb->len) {
- dch_fill_fifo(cs);
- goto afterXPR;
- }
- else {
- dev_kfree_skb_irq(cs->tx_skb);
- cs->tx_skb = NULL;
- cs->tx_cnt = 0;
- }
- }
- if ((cs->tx_skb = skb_dequeue(&cs->sq))) {
- cs->tx_cnt = 0;
- dch_fill_fifo(cs);
- }
- else {
- schedule_event(cs, D_XMTBUFREADY);
- }
- }
- afterXPR:
-
- if (istad &0x0C) { // XDU or XMR
- if (cs->debug &L1_DEB_WARN) debugl1(cs, "dch_int(): XDU");
- if (cs->tx_skb) {
- skb_push(cs->tx_skb, cs->tx_cnt); // retransmit
- cs->tx_cnt = 0;
+ if (cs->tx_skb) {
+ if (cs->tx_skb->len) {
+ dch_fill_fifo(cs);
+ goto afterXPR;
+ }
+ else {
+ dev_kfree_skb_irq(cs->tx_skb);
+ cs->tx_skb = NULL;
+ cs->tx_cnt = 0;
+ }
+ }
+ if ((cs->tx_skb = skb_dequeue(&cs->sq))) {
+ cs->tx_cnt = 0;
+ dch_fill_fifo(cs);
+ }
+ else {
+ schedule_event(cs, D_XMTBUFREADY);
+ }
+ }
+afterXPR:
+
+ if (istad & 0x0C) { // XDU or XMR
+ if (cs->debug & L1_DEB_WARN) debugl1(cs, "dch_int(): XDU");
+ if (cs->tx_skb) {
+ skb_push(cs->tx_skb, cs->tx_cnt); // retransmit
+ cs->tx_cnt = 0;
dch_fill_fifo(cs);
} else {
printk(KERN_WARNING "HiSax: ISAC XDU no skb\n");
debugl1(cs, "ISAC XDU no skb");
}
- }
+ }
}
//----------------------------------------------------------
@@ -423,15 +423,15 @@ dch_init(struct IsdnCardState *cs)
printk(KERN_INFO "HiSax: IPACX ISDN driver v0.1.0\n");
cs->setstack_d = dch_setstack;
-
+
cs->dbusytimer.function = (void *) dbusy_timer_handler;
cs->dbusytimer.data = (long) cs;
init_timer(&cs->dbusytimer);
- cs->writeisac(cs, IPACX_TR_CONF0, 0x00); // clear LDD
- cs->writeisac(cs, IPACX_TR_CONF2, 0x00); // enable transmitter
- cs->writeisac(cs, IPACX_MODED, 0xC9); // transparent mode 0, RAC, stop/go
- cs->writeisac(cs, IPACX_MON_CR, 0x00); // disable monitor channel
+ cs->writeisac(cs, IPACX_TR_CONF0, 0x00); // clear LDD
+ cs->writeisac(cs, IPACX_TR_CONF2, 0x00); // enable transmitter
+ cs->writeisac(cs, IPACX_MODED, 0xC9); // transparent mode 0, RAC, stop/go
+ cs->writeisac(cs, IPACX_MON_CR, 0x00); // disable monitor channel
}
@@ -450,55 +450,55 @@ bch_l2l1(struct PStack *st, int pr, void *arg)
u_long flags;
switch (pr) {
- case (PH_DATA | REQUEST):
- spin_lock_irqsave(&bcs->cs->lock, flags);
- if (bcs->tx_skb) {
- skb_queue_tail(&bcs->squeue, skb);
- } else {
- bcs->tx_skb = skb;
- set_bit(BC_FLG_BUSY, &bcs->Flag);
- bcs->hw.hscx.count = 0;
- bch_fill_fifo(bcs);
- }
- spin_unlock_irqrestore(&bcs->cs->lock, flags);
- break;
- case (PH_PULL | INDICATION):
- spin_lock_irqsave(&bcs->cs->lock, flags);
- if (bcs->tx_skb) {
- printk(KERN_WARNING "HiSax bch_l2l1(): this shouldn't happen\n");
- } else {
- set_bit(BC_FLG_BUSY, &bcs->Flag);
- bcs->tx_skb = skb;
- bcs->hw.hscx.count = 0;
- bch_fill_fifo(bcs);
- }
- spin_unlock_irqrestore(&bcs->cs->lock, flags);
- break;
- case (PH_PULL | REQUEST):
- if (!bcs->tx_skb) {
- clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
- st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
- } else
- set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
- break;
- case (PH_ACTIVATE | REQUEST):
- spin_lock_irqsave(&bcs->cs->lock, flags);
- set_bit(BC_FLG_ACTIV, &bcs->Flag);
- bch_mode(bcs, st->l1.mode, st->l1.bc);
- spin_unlock_irqrestore(&bcs->cs->lock, flags);
- l1_msg_b(st, pr, arg);
- break;
- case (PH_DEACTIVATE | REQUEST):
- l1_msg_b(st, pr, arg);
- break;
- case (PH_DEACTIVATE | CONFIRM):
- spin_lock_irqsave(&bcs->cs->lock, flags);
- clear_bit(BC_FLG_ACTIV, &bcs->Flag);
- clear_bit(BC_FLG_BUSY, &bcs->Flag);
- bch_mode(bcs, 0, st->l1.bc);
- spin_unlock_irqrestore(&bcs->cs->lock, flags);
- st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
- break;
+ case (PH_DATA | REQUEST):
+ spin_lock_irqsave(&bcs->cs->lock, flags);
+ if (bcs->tx_skb) {
+ skb_queue_tail(&bcs->squeue, skb);
+ } else {
+ bcs->tx_skb = skb;
+ set_bit(BC_FLG_BUSY, &bcs->Flag);
+ bcs->hw.hscx.count = 0;
+ bch_fill_fifo(bcs);
+ }
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
+ break;
+ case (PH_PULL | INDICATION):
+ spin_lock_irqsave(&bcs->cs->lock, flags);
+ if (bcs->tx_skb) {
+ printk(KERN_WARNING "HiSax bch_l2l1(): this shouldn't happen\n");
+ } else {
+ set_bit(BC_FLG_BUSY, &bcs->Flag);
+ bcs->tx_skb = skb;
+ bcs->hw.hscx.count = 0;
+ bch_fill_fifo(bcs);
+ }
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
+ break;
+ case (PH_PULL | REQUEST):
+ if (!bcs->tx_skb) {
+ clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
+ st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
+ } else
+ set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
+ break;
+ case (PH_ACTIVATE | REQUEST):
+ spin_lock_irqsave(&bcs->cs->lock, flags);
+ set_bit(BC_FLG_ACTIV, &bcs->Flag);
+ bch_mode(bcs, st->l1.mode, st->l1.bc);
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
+ l1_msg_b(st, pr, arg);
+ break;
+ case (PH_DEACTIVATE | REQUEST):
+ l1_msg_b(st, pr, arg);
+ break;
+ case (PH_DEACTIVATE | CONFIRM):
+ spin_lock_irqsave(&bcs->cs->lock, flags);
+ clear_bit(BC_FLG_ACTIV, &bcs->Flag);
+ clear_bit(BC_FLG_BUSY, &bcs->Flag);
+ bch_mode(bcs, 0, st->l1.bc);
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
+ st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
+ break;
}
}
@@ -513,28 +513,28 @@ bch_empty_fifo(struct BCState *bcs, int count)
int cnt;
cs = bcs->cs;
- hscx = bcs->hw.hscx.hscx;
- if ((cs->debug &L1_DEB_HSCX) && !(cs->debug &L1_DEB_HSCX_FIFO))
+ hscx = bcs->hw.hscx.hscx;
+ if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
debugl1(cs, "bch_empty_fifo()");
- // message too large, remove
+ // message too large, remove
if (bcs->hw.hscx.rcvidx + count > HSCX_BUFMAX) {
- if (cs->debug &L1_DEB_WARN)
+ if (cs->debug & L1_DEB_WARN)
debugl1(cs, "bch_empty_fifo() incoming packet too large");
- cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x80); // RMC
+ cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x80); // RMC
bcs->hw.hscx.rcvidx = 0;
return;
}
-
+
ptr = bcs->hw.hscx.rcvbuf + bcs->hw.hscx.rcvidx;
cnt = count;
- while (cnt--) *ptr++ = cs->BC_Read_Reg(cs, hscx, IPACX_RFIFOB);
+ while (cnt--) *ptr++ = cs->BC_Read_Reg(cs, hscx, IPACX_RFIFOB);
cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x80); // RMC
-
+
ptr = bcs->hw.hscx.rcvbuf + bcs->hw.hscx.rcvidx;
bcs->hw.hscx.rcvidx += count;
-
- if (cs->debug &L1_DEB_HSCX_FIFO) {
+
+ if (cs->debug & L1_DEB_HSCX_FIFO) {
char *t = bcs->blog;
t += sprintf(t, "bch_empty_fifo() B-%d cnt %d", hscx, count);
@@ -554,7 +554,7 @@ bch_fill_fifo(struct BCState *bcs)
u_char *ptr, *p, hscx;
cs = bcs->cs;
- if ((cs->debug &L1_DEB_HSCX) && !(cs->debug &L1_DEB_HSCX_FIFO))
+ if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
debugl1(cs, "bch_fill_fifo()");
if (!bcs->tx_skb) return;
@@ -567,17 +567,17 @@ bch_fill_fifo(struct BCState *bcs)
count = B_FIFO_SIZE;
} else {
count = bcs->tx_skb->len;
- }
+ }
cnt = count;
-
+
p = ptr = bcs->tx_skb->data;
skb_pull(bcs->tx_skb, count);
bcs->tx_cnt -= count;
bcs->hw.hscx.count += count;
- while (cnt--) cs->BC_Write_Reg(cs, hscx, IPACX_XFIFOB, *p++);
+ while (cnt--) cs->BC_Write_Reg(cs, hscx, IPACX_XFIFOB, *p++);
cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, (more ? 0x08 : 0x0a));
-
- if (cs->debug &L1_DEB_HSCX_FIFO) {
+
+ if (cs->debug & L1_DEB_HSCX_FIFO) {
char *t = bcs->blog;
t += sprintf(t, "chb_fill_fifo() B-%d cnt %d", hscx, count);
@@ -600,31 +600,31 @@ bch_int(struct IsdnCardState *cs, u_char hscx)
bcs = cs->bcs + hscx;
istab = cs->BC_Read_Reg(cs, hscx, IPACX_ISTAB);
-//##############################################
+//##############################################
// printk(KERN_WARNING "bch_int(istab=%02x)\n", istab);
-//##############################################
+//##############################################
if (!test_bit(BC_FLG_INIT, &bcs->Flag)) return;
- if (istab &0x80) { // RME
+ if (istab & 0x80) { // RME
rstab = cs->BC_Read_Reg(cs, hscx, IPACX_RSTAB);
- if ((rstab &0xf0) != 0xa0) { // !(VFR && !RDO && CRC && !RAB)
- if (!(rstab &0x80))
- if (cs->debug &L1_DEB_WARN)
- debugl1(cs, "bch_int() B-%d: invalid frame", hscx);
- if ((rstab &0x40) && (bcs->mode != L1_MODE_NULL))
- if (cs->debug &L1_DEB_WARN)
- debugl1(cs, "bch_int() B-%d: RDO mode=%d", hscx, bcs->mode);
- if (!(rstab &0x20))
- if (cs->debug &L1_DEB_WARN)
- debugl1(cs, "bch_int() B-%d: CRC error", hscx);
- cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x80); // RMC
- }
- else { // received frame ok
- count = cs->BC_Read_Reg(cs, hscx, IPACX_RBCLB) &(B_FIFO_SIZE-1);
+ if ((rstab & 0xf0) != 0xa0) { // !(VFR && !RDO && CRC && !RAB)
+ if (!(rstab & 0x80))
+ if (cs->debug & L1_DEB_WARN)
+ debugl1(cs, "bch_int() B-%d: invalid frame", hscx);
+ if ((rstab & 0x40) && (bcs->mode != L1_MODE_NULL))
+ if (cs->debug & L1_DEB_WARN)
+ debugl1(cs, "bch_int() B-%d: RDO mode=%d", hscx, bcs->mode);
+ if (!(rstab & 0x20))
+ if (cs->debug & L1_DEB_WARN)
+ debugl1(cs, "bch_int() B-%d: CRC error", hscx);
+ cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x80); // RMC
+ }
+ else { // received frame ok
+ count = cs->BC_Read_Reg(cs, hscx, IPACX_RBCLB) & (B_FIFO_SIZE - 1);
if (count == 0) count = B_FIFO_SIZE;
bch_empty_fifo(bcs, count);
if ((count = bcs->hw.hscx.rcvidx - 1) > 0) {
- if (cs->debug &L1_DEB_HSCX_FIFO)
+ if (cs->debug & L1_DEB_HSCX_FIFO)
debugl1(cs, "bch_int Frame %d", count);
if (!(skb = dev_alloc_skb(count)))
printk(KERN_WARNING "HiSax bch_int(): receive frame out of memory\n");
@@ -637,8 +637,8 @@ bch_int(struct IsdnCardState *cs, u_char hscx)
bcs->hw.hscx.rcvidx = 0;
schedule_event(bcs, B_RCVBUFREADY);
}
-
- if (istab &0x40) { // RPF
+
+ if (istab & 0x40) { // RPF
bch_empty_fifo(bcs, B_FIFO_SIZE);
if (bcs->mode == L1_MODE_TRANS) { // queue every chunk
@@ -653,21 +653,21 @@ bch_int(struct IsdnCardState *cs, u_char hscx)
schedule_event(bcs, B_RCVBUFREADY);
}
}
-
- if (istab &0x20) { // RFO
- if (cs->debug &L1_DEB_WARN)
+
+ if (istab & 0x20) { // RFO
+ if (cs->debug & L1_DEB_WARN)
debugl1(cs, "bch_int() B-%d: RFO error", hscx);
cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x40); // RRES
}
- if (istab &0x10) { // XPR
+ if (istab & 0x10) { // XPR
if (bcs->tx_skb) {
if (bcs->tx_skb->len) {
bch_fill_fifo(bcs);
goto afterXPR;
} else {
- if (test_bit(FLG_LLI_L1WAKEUP,&bcs->st->lli.flag) &&
- (PACKET_NOACK != bcs->tx_skb->pkt_type)) {
+ if (test_bit(FLG_LLI_L1WAKEUP, &bcs->st->lli.flag) &&
+ (PACKET_NOACK != bcs->tx_skb->pkt_type)) {
u_long flags;
spin_lock_irqsave(&bcs->aclock, flags);
bcs->ackcnt += bcs->hw.hscx.count;
@@ -678,7 +678,7 @@ bch_int(struct IsdnCardState *cs, u_char hscx)
dev_kfree_skb_irq(bcs->tx_skb);
bcs->hw.hscx.count = 0;
bcs->tx_skb = NULL;
- }
+ }
if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
bcs->hw.hscx.count = 0;
set_bit(BC_FLG_BUSY, &bcs->Flag);
@@ -688,22 +688,22 @@ bch_int(struct IsdnCardState *cs, u_char hscx)
schedule_event(bcs, B_XMTBUFREADY);
}
}
- afterXPR:
+afterXPR:
- if (istab &0x04) { // XDU
- if (bcs->mode == L1_MODE_TRANS) {
+ if (istab & 0x04) { // XDU
+ if (bcs->mode == L1_MODE_TRANS) {
bch_fill_fifo(bcs);
- }
- else {
- if (bcs->tx_skb) { // restart transmitting the whole frame
- skb_push(bcs->tx_skb, bcs->hw.hscx.count);
- bcs->tx_cnt += bcs->hw.hscx.count;
- bcs->hw.hscx.count = 0;
- }
- cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x01); // XRES
- if (cs->debug &L1_DEB_WARN)
- debugl1(cs, "bch_int() B-%d XDU error", hscx);
- }
+ }
+ else {
+ if (bcs->tx_skb) { // restart transmitting the whole frame
+ skb_push(bcs->tx_skb, bcs->hw.hscx.count);
+ bcs->tx_cnt += bcs->hw.hscx.count;
+ bcs->hw.hscx.count = 0;
+ }
+ cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x01); // XRES
+ if (cs->debug & L1_DEB_WARN)
+ debugl1(cs, "bch_int() B-%d XDU error", hscx);
+ }
}
}
@@ -715,43 +715,43 @@ bch_mode(struct BCState *bcs, int mode, int bc)
struct IsdnCardState *cs = bcs->cs;
int hscx = bcs->hw.hscx.hscx;
- bc = bc ? 1 : 0; // in case bc is greater than 1
+ bc = bc ? 1 : 0; // in case bc is greater than 1
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "mode_bch() switch B-%d mode %d chan %d", hscx, mode, bc);
bcs->mode = mode;
bcs->channel = bc;
-
- // map controller to according timeslot
- if (!hscx)
- {
- cs->writeisac(cs, IPACX_BCHA_TSDP_BC1, 0x80 | bc);
- cs->writeisac(cs, IPACX_BCHA_CR, 0x88);
- }
- else
- {
- cs->writeisac(cs, IPACX_BCHB_TSDP_BC1, 0x80 | bc);
- cs->writeisac(cs, IPACX_BCHB_CR, 0x88);
- }
+
+ // map controller to according timeslot
+ if (!hscx)
+ {
+ cs->writeisac(cs, IPACX_BCHA_TSDP_BC1, 0x80 | bc);
+ cs->writeisac(cs, IPACX_BCHA_CR, 0x88);
+ }
+ else
+ {
+ cs->writeisac(cs, IPACX_BCHB_TSDP_BC1, 0x80 | bc);
+ cs->writeisac(cs, IPACX_BCHB_CR, 0x88);
+ }
switch (mode) {
- case (L1_MODE_NULL):
- cs->BC_Write_Reg(cs, hscx, IPACX_MODEB, 0xC0); // rec off
- cs->BC_Write_Reg(cs, hscx, IPACX_EXMB, 0x30); // std adj.
- cs->BC_Write_Reg(cs, hscx, IPACX_MASKB, 0xFF); // ints off
- cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x41); // validate adjustments
- break;
- case (L1_MODE_TRANS):
- cs->BC_Write_Reg(cs, hscx, IPACX_MODEB, 0x88); // ext transp mode
- cs->BC_Write_Reg(cs, hscx, IPACX_EXMB, 0x00); // xxx00000
- cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x41); // validate adjustments
- cs->BC_Write_Reg(cs, hscx, IPACX_MASKB, _MASKB_IMASK);
- break;
- case (L1_MODE_HDLC):
- cs->BC_Write_Reg(cs, hscx, IPACX_MODEB, 0xC8); // transp mode 0
- cs->BC_Write_Reg(cs, hscx, IPACX_EXMB, 0x01); // idle=hdlc flags crc enabled
- cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x41); // validate adjustments
- cs->BC_Write_Reg(cs, hscx, IPACX_MASKB, _MASKB_IMASK);
- break;
+ case (L1_MODE_NULL):
+ cs->BC_Write_Reg(cs, hscx, IPACX_MODEB, 0xC0); // rec off
+ cs->BC_Write_Reg(cs, hscx, IPACX_EXMB, 0x30); // std adj.
+ cs->BC_Write_Reg(cs, hscx, IPACX_MASKB, 0xFF); // ints off
+ cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x41); // validate adjustments
+ break;
+ case (L1_MODE_TRANS):
+ cs->BC_Write_Reg(cs, hscx, IPACX_MODEB, 0x88); // ext transp mode
+ cs->BC_Write_Reg(cs, hscx, IPACX_EXMB, 0x00); // xxx00000
+ cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x41); // validate adjustments
+ cs->BC_Write_Reg(cs, hscx, IPACX_MASKB, _MASKB_IMASK);
+ break;
+ case (L1_MODE_HDLC):
+ cs->BC_Write_Reg(cs, hscx, IPACX_MODEB, 0xC8); // transp mode 0
+ cs->BC_Write_Reg(cs, hscx, IPACX_EXMB, 0x01); // idle=hdlc flags crc enabled
+ cs->BC_Write_Reg(cs, hscx, IPACX_CMDRB, 0x41); // validate adjustments
+ cs->BC_Write_Reg(cs, hscx, IPACX_MASKB, _MASKB_IMASK);
+ break;
}
}
@@ -784,13 +784,13 @@ bch_open_state(struct IsdnCardState *cs, struct BCState *bcs)
if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
if (!(bcs->hw.hscx.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
printk(KERN_WARNING
- "HiSax open_bchstate(): No memory for hscx.rcvbuf\n");
+ "HiSax open_bchstate(): No memory for hscx.rcvbuf\n");
clear_bit(BC_FLG_INIT, &bcs->Flag);
return (1);
}
if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) {
printk(KERN_WARNING
- "HiSax open_bchstate: No memory for bcs->blog\n");
+ "HiSax open_bchstate: No memory for bcs->blog\n");
clear_bit(BC_FLG_INIT, &bcs->Flag);
kfree(bcs->hw.hscx.rcvbuf);
bcs->hw.hscx.rcvbuf = NULL;
@@ -842,21 +842,21 @@ bch_init(struct IsdnCardState *cs, int hscx)
//----------------------------------------------------------
// Main interrupt handler
//----------------------------------------------------------
-void
+void
interrupt_ipacx(struct IsdnCardState *cs)
{
u_char ista;
-
+
while ((ista = cs->readisac(cs, IPACX_ISTA))) {
-//#################################################
+//#################################################
// printk(KERN_WARNING "interrupt_ipacx(ista=%02x)\n", ista);
-//#################################################
- if (ista &0x80) bch_int(cs, 0); // B channel interrupts
- if (ista &0x40) bch_int(cs, 1);
-
- if (ista &0x01) dch_int(cs); // D channel
- if (ista &0x10) cic_int(cs); // Layer 1 state
- }
+//#################################################
+ if (ista & 0x80) bch_int(cs, 0); // B channel interrupts
+ if (ista & 0x40) bch_int(cs, 1);
+
+ if (ista & 0x01) dch_int(cs); // D channel
+ if (ista & 0x10) cic_int(cs); // Layer 1 state
+ }
}
//----------------------------------------------------------
@@ -867,17 +867,17 @@ clear_pending_ints(struct IsdnCardState *cs)
{
int ista;
- // all interrupts off
- cs->writeisac(cs, IPACX_MASK, 0xff);
+ // all interrupts off
+ cs->writeisac(cs, IPACX_MASK, 0xff);
cs->writeisac(cs, IPACX_MASKD, 0xff);
cs->BC_Write_Reg(cs, 0, IPACX_MASKB, 0xff);
cs->BC_Write_Reg(cs, 1, IPACX_MASKB, 0xff);
-
- ista = cs->readisac(cs, IPACX_ISTA);
- if (ista &0x80) cs->BC_Read_Reg(cs, 0, IPACX_ISTAB);
- if (ista &0x40) cs->BC_Read_Reg(cs, 1, IPACX_ISTAB);
- if (ista &0x10) cs->readisac(cs, IPACX_CIR0);
- if (ista &0x01) cs->readisac(cs, IPACX_ISTAD);
+
+ ista = cs->readisac(cs, IPACX_ISTA);
+ if (ista & 0x80) cs->BC_Read_Reg(cs, 0, IPACX_ISTAB);
+ if (ista & 0x40) cs->BC_Read_Reg(cs, 1, IPACX_ISTAB);
+ if (ista & 0x10) cs->readisac(cs, IPACX_CIR0);
+ if (ista & 0x01) cs->readisac(cs, IPACX_ISTAD);
}
//----------------------------------------------------------
@@ -887,23 +887,23 @@ clear_pending_ints(struct IsdnCardState *cs)
void
init_ipacx(struct IsdnCardState *cs, int part)
{
- if (part &1) { // initialise chip
-//##################################################
+ if (part & 1) { // initialise chip
+//##################################################
// printk(KERN_INFO "init_ipacx(%x)\n", part);
-//##################################################
+//##################################################
clear_pending_ints(cs);
bch_init(cs, 0);
bch_init(cs, 1);
dch_init(cs);
}
- if (part &2) { // reenable all interrupts and start chip
+ if (part & 2) { // reenable all interrupts and start chip
cs->BC_Write_Reg(cs, 0, IPACX_MASKB, _MASKB_IMASK);
cs->BC_Write_Reg(cs, 1, IPACX_MASKB, _MASKB_IMASK);
cs->writeisac(cs, IPACX_MASKD, _MASKD_IMASK);
cs->writeisac(cs, IPACX_MASK, _MASK_IMASK); // global mask register
// reset HDLC Transmitters/receivers
- cs->writeisac(cs, IPACX_CMDRD, 0x41);
+ cs->writeisac(cs, IPACX_CMDRD, 0x41);
cs->BC_Write_Reg(cs, 0, IPACX_CMDRB, 0x41);
cs->BC_Write_Reg(cs, 1, IPACX_CMDRB, 0x41);
ph_command(cs, IPACX_CMD_RES);
@@ -911,4 +911,3 @@ init_ipacx(struct IsdnCardState *cs, int part)
}
//----------------- end of file -----------------------
-
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-01 10:23:34 +0000